Finding the Fourth Proportional to 213,736.95, 294,955.70 and 118,241.60
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Solution
The fourth proportional to 213,736.95, 294,955.70 and 118,241.60 is: 163,172.68
Step by Step Solution
- Step 1: Write the proportion equation
213,736.95 : 294,955.70 = 118,241.60 : x - Step 2: Convert to fraction form
213,736.95/294,955.70 = 118,241.60/x - Step 3: Cross multiply
213,736.95x = 294,955.70 × 118,241.60 - Step 4: Simplify right side
213,736.95x = 34,876,031,831.13 - Step 5: Solve for x
x = 34,876,031,831.13/213,736.95 - Step 6: Final answer
x = 163,172.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.